Microchip PIC

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Cautions

Config

  • NEVER disable the PIC's /MCLR (Reset) pin function
  • NEVER program a PIC "in circuit" with ANY other connections to the target board

Circuit Design

  • ALWAYS set MCLRE_ON in the config options and have MCLR pin with a 10K pull-up resistor to Vdd.

Initialization

  • ALWAYS set the input pins and clear the output pins, excepting UART TX/RX.
i.e. SDO should have TRISX bit cleared, SDI should have TRISX bit set.
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